BehringerMICROAMP HA400 Ultra-Compact 4 Channel Stereo Headphone Amplifier & Tascam TH-02 Closed Back Studio Headphones, Black

I got one of these to allow my wife or I to listen at whatever volume we want while keeping the TV speakers muted so the other person can sleep. It works just as I wanted and expected it to.The only problem is that it uses 1/4" TRS jacks for the input and outputs. This is fine if you're using it with standard recording studio/musician's connectors and cables, and of course, that's the market this amp was designed for. I think the manufacturer would sell a TON of these if they made a version with RCA jacks for the input and 1/8" TRS jacks for the headphone outputs. That would match what most consumers will have coming from their TV these days and what they'll find on their headphones/earbuds.So the issue becomes finding 1/8" Female TRS to 1/4" Male TRS adapters that aren't total junk. I tried a few different ones found here, and had extremely poor results from most of them. Most didn't make a secure positive mechanical or electrical connection. It's hard to imagine how they can even sell most of them! But again, this is NOT the fault of this little amplifier, it's just something to be aware of.I finally ordered some adapters from Parts Express (a seller who does sell here on Amazon), but I had to get them directly from that supplier since they didn't seem to have them available here on Amazon. I hope I can say that on here without it being censored or causing friction.Those adapters work perfectly. They fit tight and make solid electrical contact.With that problem taken care of, the unit does just what I need it to do, and the sound quality is plenty good for TV viewing. I'm not going to say that it's an audiophile-grade headphone amp, but it's really not bad at all.Having independent volume controls for up to four people is nice so everyone can use a setting that suits them. As I said, the main use for me is so either my wife or I can watch TV without disturbing the other person if they're sleeping or talking on the phone, etc. We just keep a couple pairs of headphones and this amp at our usual watching position, and it's very handy.I've seen complaints on here about buzzing or receiving AM radio broadcasts. I suspect that in all of these cases, the true culprits are either poor electrical contact when using crummy adapters or cables OR they've managed to allow the metal case of this unit to come into contact with something that's grounded (but not well) to another piece of their equipment, thus creating a "ground loop". Ideally, you will keep this unit's case electrically isolated from anything that might create a ground loop back to your audio source. With this amplifier and your headphones "floating" electrically from everything else, you will not likely get hum or buzz.And with good, solid electrical connections (avoiding poor adapters, etc), you will likely avoid any reception of strong AM radio signals in the area.All of this would be true of any amplifier.The sound quality is perfectly fine for an amp of this price range. It drives various headphones to levels far above anything I've needed. It seems to have fine frequency response and reasonably low distortion. The volume controls move smoothly and create no static. And I've been using it for a few years and had zero reliability issues.So I give the amplifier five stars for doing what it is supposed to do quite well.

I have a small production studio in my home and for many years I have just gotten by with a headphone splitter as I usually only have myself and one client at a time. However, there are times where there may be more than one person listening in and it comes in handy to have a unit such as this. I have actually had this unit saved on my wish list for years and can't really explain why it took me this long to purchase. I am so glad that I did. The unit is well-made and has a good look to it. It performs fantastic with no , kind of noise and the buttons feel of high quality. Definitely worth the money.

TLDR; Just as a simple amp to boost signal, this works great. No hiss, static, ect. for my setup.Recently I purchased an Elgato Wave XLR. I also purchased beyerdynamic DT 990 PRO headphones to go along with it. What I expected was to be able to use the headphones with the Wave XLR. However, I quickly found out that while the Wave XLR is capable of powering the DT 990 PRO headphones, you had to set the volume on the Wave XLR to full to have a 'normal' level of volume. I really like the Wave XLR and I could have purchased and used a DAC just for the headphones, but I would not have been able to monitor the microphone with out some sort of delay. (Sure I could have also switched to a DAC that could power the headphones, but I really liked what the Wave XLR brought).Backstory over, I bought this amplifier because I just wanted a bit of boost to the headphones. This item works great for that purpose. I don't have any hissing, no static when adjusting volume, and no other apparent interference with it.

I returned my Pyle Pro PHA40 micro amp that was shooting sparks at me and decided to get this instead. I am very pleased. This little amp has some kick. You will need a 3.5mm female to 1/4 male adapter if you use standard 3.5mm headphones, but that's only a $5 purchase at your local guitar center. Also, you should know I have a pair of Koss Pro 4AA headphones that have a 250ohm impedance. This amp was MORE THAN ENOUGH to power my hi-fidelity cans. I cannot speak of how it would handle 600ohm headphones but it does 250 just fine. The volume goes way up. I was literally pained when I turned the volume all the way up. I do not recommend turning up to 11 just yet. You don't want to go deaf in the first week. So a nice bonus here is the fact you can have 4 separate headphones plugged in at 1 time with 4 separate volume controls for each pair. There is however only one input source available to you. Also, my major issue was that at maximum volume this amp does tend to distort a little. That however was using some pretty low quality audio (YouTube) and I have not yet tested with FLAC files. I can say that at normal human listening levels it sounds clear and loud. One more critique is that it has no on or off switch. Its a minor issue but it would be nice to just leave it plugged in all the time and flip it on and off at will. As its manufactured now the only on and off switch is disconnecting it from the included power supply. I definitely recommend this little amp if you just need that extra punch in your ears or if you need something to drive some higher quality cans. It was well worth the $25 bucks I paid and is really the cheapest amp option out there on the market.

Headphone amplification is crystal clear and works perfectly. 75% is as high as you need to go.

Muy bueno respecto calidad precio.

Cumpre o que promete

Lo necesitábamos para que cada músico pudiera escuchar el monitor de la interfaz y fue perfecto en su desempeño, muy recomendable y profesional.

Con alcuni amici abbiamo deciso di riprendere a strimpellare. Per questo scopo è stato affittato un locale in cui, però, il rumore deve essere moltocontenuto. Dovendo suonare in cuffia serviva un’oggetto come quello recensito. Posso dire che fa il suo lavoro bene ed in modo silenzioso. I miei amici ne sono contenti. All’uso si è rivelato ottimo. Mi riservo di aggiornare la recensione più avanti per verificare che l’ottima iniziale impressione sia confermata nel tempo.

I bought this as a four channel audio duplication and disturbution system for a church streaming and podcast recording setup. Easy to setup. Audio quality is great and the quality of the pots for volume control on each channel are good and have no hiss or crackle when adjusting them. Works well with line level singals, mixer desk monitor outputs, computer line inputs and headphones. Price is just silly cheap for this quality. Well done again Behringer - great kit and great price.